mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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216 lines
8.0 KiB
C++
216 lines
8.0 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is thebes gfx code.
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*
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* The Initial Developer of the Original Code is Mozilla Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Vladimir Vukicevic <vladimir@pobox.com>
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* Masayuki Nakano <masayuki@d-toybox.com>
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* John Daggett <jdaggett@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef GFX_ATSUIFONTS_H
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#define GFX_ATSUIFONTS_H
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#ifndef __LP64__ /* ATSUI not available on 64-bit */
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#include "cairo.h"
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#include "gfxTypes.h"
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#include "gfxFont.h"
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#include "gfxFontUtils.h"
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#include "gfxPlatform.h"
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#include <Carbon/Carbon.h>
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class gfxAtsuiFontGroup;
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class MacOSFontEntry;
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class MacOSFamilyEntry;
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class gfxAtsuiFont : public gfxFont {
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public:
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gfxAtsuiFont(MacOSFontEntry *aFontEntry,
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const gfxFontStyle *fontStyle, PRBool aNeedsBold);
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virtual ~gfxAtsuiFont();
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virtual const gfxFont::Metrics& GetMetrics();
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float GetCharWidth(PRUnichar c, PRUint32 *aGlyphID = nsnull);
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float GetCharHeight(PRUnichar c);
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ATSFontRef GetATSFontRef();
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cairo_font_face_t *CairoFontFace() { return mFontFace; }
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cairo_scaled_font_t *CairoScaledFont() { return mScaledFont; }
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ATSUStyle GetATSUStyle() { return mATSUStyle; }
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virtual nsString GetUniqueName();
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virtual PRUint32 GetSpaceGlyph() { return mSpaceGlyph; }
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PRBool HasMirroringInfo();
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virtual void SetupGlyphExtents(gfxContext *aContext, PRUint32 aGlyphID,
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PRBool aNeedTight, gfxGlyphExtents *aExtents);
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PRBool TestCharacterMap(PRUint32 aCh);
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MacOSFontEntry* GetFontEntry();
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PRBool Valid() { return mIsValid; }
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protected:
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const gfxFontStyle *mFontStyle;
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ATSUStyle mATSUStyle;
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PRBool mHasMirroring;
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PRBool mHasMirroringLookedUp;
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nsString mUniqueName;
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cairo_font_face_t *mFontFace;
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cairo_scaled_font_t *mScaledFont;
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gfxFont::Metrics mMetrics;
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gfxFloat mAdjustedSize;
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PRUint32 mSpaceGlyph;
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void InitMetrics(ATSUFontID aFontID, ATSFontRef aFontRef);
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virtual PRBool SetupCairoFont(gfxContext *aContext);
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};
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class THEBES_API gfxAtsuiFontGroup : public gfxFontGroup {
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public:
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gfxAtsuiFontGroup(const nsAString& families,
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const gfxFontStyle *aStyle,
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gfxUserFontSet *aUserFontSet);
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virtual ~gfxAtsuiFontGroup() {};
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virtual gfxFontGroup *Copy(const gfxFontStyle *aStyle);
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virtual gfxTextRun *MakeTextRun(const PRUnichar* aString, PRUint32 aLength,
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const Parameters* aParams, PRUint32 aFlags);
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virtual gfxTextRun *MakeTextRun(const PRUint8* aString, PRUint32 aLength,
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const Parameters* aParams, PRUint32 aFlags);
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// When aWrapped is true, the string includes bidi control
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// characters. The first character will be LRO or LRO to force setting the
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// direction for all characters, the last character is PDF, and the
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// second to last character is a non-whitespace character --- to ensure
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// that there is no "trailing whitespace" in the string, see
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// http://weblogs.mozillazine.org/roc/archives/2007/02/superlaser_targ.html#comments
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void MakeTextRunInternal(const PRUnichar *aString, PRUint32 aLength,
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PRBool aWrapped, gfxTextRun *aTextRun);
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gfxAtsuiFont* GetFontAt(PRInt32 aFontIndex) {
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// If it turns out to be hard for all clients that cache font
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// groups to call UpdateFontList at appropriate times, we could
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// instead consider just calling UpdateFontList from someplace
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// more central (such as here).
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NS_ASSERTION(!mUserFontSet || mCurrGeneration == GetGeneration(),
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"Whoever was caching this font group should have "
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"called UpdateFontList on it");
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return static_cast<gfxAtsuiFont*>(static_cast<gfxFont*>(mFonts[aFontIndex]));
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}
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PRBool HasFont(ATSFontRef aFontRef);
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inline gfxAtsuiFont* WhichFontSupportsChar(nsTArray< nsRefPtr<gfxFont> >& aFontList,
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PRUint32 aCh)
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{
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PRUint32 len = aFontList.Length();
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for (PRUint32 i = 0; i < len; i++) {
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gfxAtsuiFont* font = static_cast<gfxAtsuiFont*>(aFontList.ElementAt(i).get());
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if (font->TestCharacterMap(aCh))
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return font;
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}
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return nsnull;
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}
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// search through pref fonts for a character, return nsnull if no matching pref font
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already_AddRefed<gfxFont> WhichPrefFontSupportsChar(PRUint32 aCh);
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already_AddRefed<gfxFont> WhichSystemFontSupportsChar(PRUint32 aCh);
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void UpdateFontList();
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protected:
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static PRBool FindATSUFont(const nsAString& aName,
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const nsACString& aGenericName,
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void *closure);
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PRUint32 GuessMaximumStringLength();
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/**
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* @param aRun the text run to fill in
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* @param aString the complete text including all wrapper characters
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* @param aLength the length of aString
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* @param aLayoutStart the first character of aString that should be
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* at the start of the ATSUI layout; this skips any wrapper character
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* used to override direction
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* @param aLayoutLength the length of the characters that should be
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* in the ATSUI layout; this excludes any trailing wrapper character
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* used to override direction
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* @param aTrailingCharsToIgnore the number of trailing characters
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* in the ATSUI layout that are not part of the text run
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* (characters added to ensure correct RTL and kerning behaviour)
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* @param aTextRunOffset the character offset in the textrun where
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* the glyph data from the ATSUI layout should be copied
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* @return true for success
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*/
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PRBool InitTextRun(gfxTextRun *aRun,
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const PRUnichar *aString, PRUint32 aLength,
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PRUint32 aLayoutStart, PRUint32 aLayoutLength,
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PRUint32 aOffsetInTextRun, PRUint32 aLengthInTextRun);
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/**
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* Function to reinitialize our mFonts array and any other data
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* that depends on mFonts.
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*/
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void InitFontList();
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// cache the most recent pref font to avoid general pref font lookup
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nsRefPtr<MacOSFamilyEntry> mLastPrefFamily;
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nsRefPtr<gfxAtsuiFont> mLastPrefFont;
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eFontPrefLang mLastPrefLang; // lang group for last pref font
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PRBool mLastPrefFirstFont; // is this the first font in the list of pref fonts for this lang group?
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eFontPrefLang mPageLang;
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};
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#endif /* not __LP64__ */
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#endif /* GFX_ATSUIFONTS_H */
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